19817200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:171

約数の個数: 120

約数和(自身を含む): 53170208

約数和(自身を除く): 33353008

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 37, 40, 50, 52, 65, 74, 80, 100, 103, 104, 130, 148, 185, 200, 206, 208, 260, 296, 325, 370, 400, 412, 481, 515, 520, 592, 650, 740, 824, 925, 962, 1030, 1040, 1300, 1339, 1480, 1648, 1850, 1924, 2060, 2405, 2575, 2600, 2678, 2960, 3700, 3811, 3848, 4120, 4810, 5150, 5200, 5356, 6695, 7400, 7622, 7696, 8240, 9620, 10300, 10712, 12025, 13390, 14800, 15244, 19055, 19240, 20600, 21424, 24050, 26780, 30488, 33475, 38110, 38480, 41200, 48100, 49543, 53560, 60976, 66950, 76220, 95275, 96200, 99086, 107120, 133900, 152440, 190550, 192400, 198172, 247715, 267800, 304880, 381100, 396344, 495430, 535600, 762200, 792688, 990860, 1238575, 1524400, 1981720, 2477150, 3963440, 4954300, 9908600, 19817200]

約数ペア:

[(1, 19817200), (2, 9908600), (4, 4954300), (5, 3963440), (8, 2477150), (10, 1981720), (13, 1524400), (16, 1238575), (20, 990860), (25, 792688), (26, 762200), (37, 535600), (40, 495430), (50, 396344), (52, 381100), (65, 304880), (74, 267800), (80, 247715), (100, 198172), (103, 192400), (104, 190550), (130, 152440), (148, 133900), (185, 107120), (200, 99086), (206, 96200), (208, 95275), (260, 76220), (296, 66950), (325, 60976), (370, 53560), (400, 49543), (412, 48100), (481, 41200), (515, 38480), (520, 38110), (592, 33475), (650, 30488), (740, 26780), (824, 24050), (925, 21424), (962, 20600), (1030, 19240), (1040, 19055), (1300, 15244), (1339, 14800), (1480, 13390), (1648, 12025), (1850, 10712), (1924, 10300), (2060, 9620), (2405, 8240), (2575, 7696), (2600, 7622), (2678, 7400), (2960, 6695), (3700, 5356), (3811, 5200), (3848, 5150), (4120, 4810)]